-
Notifications
You must be signed in to change notification settings - Fork 1
/
Copy pathmp3cast~.c
1188 lines (1064 loc) · 37.1 KB
/
mp3cast~.c
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
161
162
163
164
165
166
167
168
169
170
171
172
173
174
175
176
177
178
179
180
181
182
183
184
185
186
187
188
189
190
191
192
193
194
195
196
197
198
199
200
201
202
203
204
205
206
207
208
209
210
211
212
213
214
215
216
217
218
219
220
221
222
223
224
225
226
227
228
229
230
231
232
233
234
235
236
237
238
239
240
241
242
243
244
245
246
247
248
249
250
251
252
253
254
255
256
257
258
259
260
261
262
263
264
265
266
267
268
269
270
271
272
273
274
275
276
277
278
279
280
281
282
283
284
285
286
287
288
289
290
291
292
293
294
295
296
297
298
299
300
301
302
303
304
305
306
307
308
309
310
311
312
313
314
315
316
317
318
319
320
321
322
323
324
325
326
327
328
329
330
331
332
333
334
335
336
337
338
339
340
341
342
343
344
345
346
347
348
349
350
351
352
353
354
355
356
357
358
359
360
361
362
363
364
365
366
367
368
369
370
371
372
373
374
375
376
377
378
379
380
381
382
383
384
385
386
387
388
389
390
391
392
393
394
395
396
397
398
399
400
401
402
403
404
405
406
407
408
409
410
411
412
413
414
415
416
417
418
419
420
421
422
423
424
425
426
427
428
429
430
431
432
433
434
435
436
437
438
439
440
441
442
443
444
445
446
447
448
449
450
451
452
453
454
455
456
457
458
459
460
461
462
463
464
465
466
467
468
469
470
471
472
473
474
475
476
477
478
479
480
481
482
483
484
485
486
487
488
489
490
491
492
493
494
495
496
497
498
499
500
501
502
503
504
505
506
507
508
509
510
511
512
513
514
515
516
517
518
519
520
521
522
523
524
525
526
527
528
529
530
531
532
533
534
535
536
537
538
539
540
541
542
543
544
545
546
547
548
549
550
551
552
553
554
555
556
557
558
559
560
561
562
563
564
565
566
567
568
569
570
571
572
573
574
575
576
577
578
579
580
581
582
583
584
585
586
587
588
589
590
591
592
593
594
595
596
597
598
599
600
601
602
603
604
605
606
607
608
609
610
611
612
613
614
615
616
617
618
619
620
621
622
623
624
625
626
627
628
629
630
631
632
633
634
635
636
637
638
639
640
641
642
643
644
645
646
647
648
649
650
651
652
653
654
655
656
657
658
659
660
661
662
663
664
665
666
667
668
669
670
671
672
673
674
675
676
677
678
679
680
681
682
683
684
685
686
687
688
689
690
691
692
693
694
695
696
697
698
699
700
701
702
703
704
705
706
707
708
709
710
711
712
713
714
715
716
717
718
719
720
721
722
723
724
725
726
727
728
729
730
731
732
733
734
735
736
737
738
739
740
741
742
743
744
745
746
747
748
749
750
751
752
753
754
755
756
757
758
759
760
761
762
763
764
765
766
767
768
769
770
771
772
773
774
775
776
777
778
779
780
781
782
783
784
785
786
787
788
789
790
791
792
793
794
795
796
797
798
799
800
801
802
803
804
805
806
807
808
809
810
811
812
813
814
815
816
817
818
819
820
821
822
823
824
825
826
827
828
829
830
831
832
833
834
835
836
837
838
839
840
841
842
843
844
845
846
847
848
849
850
851
852
853
854
855
856
857
858
859
860
861
862
863
864
865
866
867
868
869
870
871
872
873
874
875
876
877
878
879
880
881
882
883
884
885
886
887
888
889
890
891
892
893
894
895
896
897
898
899
900
901
902
903
904
905
906
907
908
909
910
911
912
913
914
915
916
917
918
919
920
921
922
923
924
925
926
927
928
929
930
931
932
933
934
935
936
937
938
939
940
941
942
943
944
945
946
947
948
949
950
951
952
953
954
955
956
957
958
959
960
961
962
963
964
965
966
967
968
969
970
971
972
973
974
975
976
977
978
979
980
981
982
983
984
985
986
987
988
989
990
991
992
993
994
995
996
997
998
999
1000
/* -------------------------- mp3cast~ ---------------------------------------- */
/* */
/* Tilde object to send mp3-stream to shoutcast/icecast server. */
/* Written by Olaf Matthes (olaf.matthes@gmx.de). */
/* Get source at http://www.akustische-kunst.de/puredata/ */
/* */
/* This program is free software; you can redistribute it and/or */
/* modify it under the terms of the GNU General Public License */
/* as published by the Free Software Foundation; either version 2 */
/* of the License, or (at your option) any later version. */
/* */
/* See file LICENSE for further informations on licensing terms. */
/* */
/* This program is distributed in the hope that it will be useful, */
/* but WITHOUT ANY WARRANTY; without even the implied warranty of */
/* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the */
/* GNU General Public License for more details. */
/* */
/* You should have received a copy of the GNU General Public License */
/* along with this program; if not, write to the Free Software */
/* Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA. */
/* */
/* Based on PureData by Miller Puckette and others. */
/* Uses the LAME MPEG 1 Layer 3 encoding library (lame_enc.dll) which can */
/* be found at http://www.cdex.n3.net. */
/* */
/* ---------------------------------------------------------------------------- */
#ifdef _MSC_VER
#pragma warning( disable : 4244 )
#pragma warning( disable : 4305 )
#endif
#include "m_pd.h" /* standard pd stuff */
#include <sys/types.h>
#include <string.h>
#include <stdio.h>
#include <errno.h>
#include <stdlib.h>
#include <fcntl.h>
#include <sys/stat.h>
#include <ctype.h>
#ifndef __APPLE__
#include <malloc.h>
#endif
#ifdef _WIN32
#include <io.h>
#include <windows.h>
#include <winsock.h>
#include <windef.h>
#else
#include <unistd.h>
#include <sys/socket.h>
#include <netinet/in.h>
#include <netdb.h>
#include <time.h>
#include <sys/time.h>
#define SOCKET_ERROR -1
#endif
#include <lame/lame.h> /* lame encoder stuff */
#include "mpg123.h"
#define CLASSNAME "mp3cast~"
#define LIBVERSION "0.6"
#define MY_MP3_MALLOC_IN_SIZE 65536
/* max size taken from lame readme */
#define MY_MP3_MALLOC_OUT_SIZE 1.25*MY_MP3_MALLOC_IN_SIZE+7200
#define MAXDATARATE 320 /* maximum mp3 data rate is 320kbit/s */
#define STRBUF_SIZE 1024
// urlencoding stuff taken from: https://stackoverflow.com/a/21491633
char urlenc_table[256] = {0};
void urlencode_table_init(){
int i;
for (i = 0; i < 256; i++){
urlenc_table[i] = isalnum( i) || i == '*' || i == '-' || i == '.' || i == '_' ? i : (i == ' ') ? '+' : 0;
}
}
char *urlencode(unsigned char *s, char *enc){
for (; *s; s++){
if (urlenc_table[*s]) *enc = urlenc_table[*s];
else sprintf( enc, "%%%02X", *s);
while (*++enc);
}
return(enc);
}
static char base64table[65] =
{
'A','B','C','D','E','F','G','H','I','J','K','L','M','N','O','P',
'Q','R','S','T','U','V','W','X','Y','Z','a','b','c','d','e','f',
'g','h','i','j','k','l','m','n','o','p','q','r','s','t','u','v',
'w','x','y','z','0','1','2','3','4','5','6','7','8','9','+','/',
};
static t_class *mp3cast_class;
typedef struct _mp3cast
{
t_object x_obj;
/* LAME stuff */
int x_lame; /* info about encoder status */
int x_lamechunk; /* chunk size for LAME encoder */
int x_mp3size; /* number of returned mp3 samples */
/* buffer stuff */
unsigned short x_inp; /* in position for buffer */
unsigned short x_outp; /* out position for buffer*/
short *x_mp3inbuf; /* data to be sent to LAME */
unsigned char *x_mp3outbuf; /* data returned by LAME -> our mp3 stream */
short *x_buffer; /* data to be buffered */
int x_bytesbuffered; /* number of unprocessed bytes in buffer */
int x_start;
/* mp3 format stuff */
int x_samplerate;
int x_bitrate; /* bitrate of mp3 stream */
int x_mp3mode; /* mode (mono, joint stereo, stereo, dual mono) */
int x_mp3quality; /* quality of encoding */
/* SHOUTcast server stuff */
int x_fd; /* info about connection status */
char* x_passwd; /* password for server */
int x_icecast; /* tells if we use a IceCast server or SHOUTcast */
/* special IceCast server stuff */
char* x_mountpoint;
char* x_name;
char* x_url;
char* x_genre;
char* x_description;
int x_isPublic;
t_float x_f; /* float needed for signal input */
/* connection stuff */
t_float x_timeout; /* connection timeout */
struct sockaddr_in x_servaddr;
char *x_hostname;
int x_port;
lame_global_flags *lgfp; /* lame encoder configuration */
} t_mp3cast;
// borrowed from iemnet_sender.c
static int mp3cast_sock_set_nonblocking(int socket, int nonblocking)
{
#ifdef _WIN32
u_long modearg = nonblocking;
if (ioctlsocket(socket, FIONBIO, &modearg) != NO_ERROR)
return -1;
#else
int sockflags = fcntl(socket, F_GETFL, 0);
if (nonblocking)
sockflags |= O_NONBLOCK;
else
sockflags &= ~O_NONBLOCK;
if (fcntl(socket, F_SETFL, sockflags) < 0)
return -1;
#endif
return 0;
}
/* encode PCM data to mp3 stream */
static void mp3cast_encode(t_mp3cast *x)
{
unsigned short i, wp;
int n = x->x_lamechunk;
#ifdef _WIN32
if(x->x_lamechunk < sizeof(x->x_mp3inbuf))
#else
if(x->x_lamechunk < (int)sizeof(x->x_mp3inbuf))
#endif
{
pd_error(x, "[%s]: not enough memory!", CLASSNAME);
return;
}
/* on start/reconnect set outpoint that it not interferes with inpoint */
if(x->x_start == -1)
{
logpost(x, 3, "[%s]: initialising buffers", CLASSNAME);
/* we try to keep 2.5 times the data the encoder needs in the buffer */
if(x->x_inp > (2 * x->x_lamechunk))
{
x->x_outp = (short) x->x_inp - (2.5 * x->x_lamechunk);
}
else if(x->x_inp < (2 * x->x_lamechunk))
{
x->x_outp = (short) MY_MP3_MALLOC_IN_SIZE - (2.5 * x->x_lamechunk);
}
x->x_start = 1;
}
if((unsigned short)(x->x_outp - x->x_inp) < x->x_lamechunk)pd_error(x, "[%s]: buffers overlap!", CLASSNAME);
i = MY_MP3_MALLOC_IN_SIZE - x->x_outp;
/* read from buffer */
if(x->x_lamechunk <= i)
{
/* enough data until end of buffer */
for(n = 0; n < x->x_lamechunk; n++) /* fill encode buffer */
{
x->x_mp3inbuf[n] = x->x_buffer[n + x->x_outp];
}
x->x_outp += x->x_lamechunk;
}
else /* split data */
{
for(wp = 0; wp < i; wp++) /* data at end of buffer */
{
x->x_mp3inbuf[wp] = x->x_buffer[wp + x->x_outp];
}
for(wp = i; wp < x->x_lamechunk; wp++) /* write rest of data at beginning of buffer */
{
x->x_mp3inbuf[wp] = x->x_buffer[wp - i];
}
x->x_outp = x->x_lamechunk - i;
}
/* encode mp3 data */
x->x_mp3size = lame_encode_buffer_interleaved(x->lgfp, x->x_mp3inbuf,
x->x_lamechunk/lame_get_num_channels(x->lgfp),
x->x_mp3outbuf, MY_MP3_MALLOC_OUT_SIZE);
/* check result */
if(x->x_mp3size<0)
{
lame_close( x->lgfp );
pd_error(x, "[%s]: lame_encode_buffer_interleaved failed (%d)", CLASSNAME, x->x_mp3size);
x->x_lame = -1;
}
}
/* stream mp3 to SHOUTcast server */
static void mp3cast_stream(t_mp3cast *x)
{
int err = -1; /* error return code */
int i = 0;
// set socket to non-blocking mode
if (mp3cast_sock_set_nonblocking(x->x_fd, 1) < 0) {
pd_error(x, "[%s]: could not set socket to non-blocking [errno %d]\n", CLASSNAME, errno);
}
while((err = send(x->x_fd, x->x_mp3outbuf, x->x_mp3size, 0)) < 0)
{
if ((errno == EWOULDBLOCK || errno == EAGAIN) && i < 4)
{
#ifdef _WIN32
Sleep(1000);
#else
sleep(1);
#endif
i++;
} else {
break;
}
}
if(err < 0)
{
pd_error(x, "[%s]: could not send encoded data to server (%d)", CLASSNAME, err);
lame_close( x->lgfp );
x->x_lame = -1;
#ifdef _WIN32
closesocket(x->x_fd);
#else
close(x->x_fd);
#endif /* _WIN32 */
x->x_fd = -1;
outlet_float(x->x_obj.ob_outlet, 0);
}
if((err > 0)&&(err != x->x_mp3size))pd_error(x, "[%s]: %d bytes skipped", CLASSNAME, x->x_mp3size - err);
}
/* buffer data as channel interleaved PCM */
static t_int *mp3cast_perform(t_int *w)
{
t_float *in1 = (t_float *)(w[1]); /* left audio inlet */
t_float *in2 = (t_float *)(w[2]); /* right audio inlet */
t_mp3cast *x = (t_mp3cast *)(w[3]);
int n = (int)(w[4]); /* number of samples */
unsigned short i,wp;
float in;
/* copy the data into the buffer */
i = MY_MP3_MALLOC_IN_SIZE - x->x_inp; /* space left at the end of buffer */
n *= 2; /* two channels go into one buffer */
if( n <= i )
{
/* the place between inp and MY_MP3_MALLOC_IN_SIZE */
/* is big enough to hold the data */
for(wp = 0; wp < n; wp++)
{
if(wp%2)
{
in = *(in2++); /* right channel / inlet */
}
else
{
in = *(in1++); /* left channel / inlet */
}
if (in > 1.0)
{
in = 1.0;
}
if (in < -1.0)
{
in = -1.0;
}
x->x_buffer[wp + x->x_inp] = (short) (32767.0 * in);
}
x->x_inp += n; /* n more samples written to buffer */
}
else
{
/* the place between inp and MY_MP3_MALLOC_IN_SIZE is not */
/* big enough to hold the data */
/* writing will take place in two turns, one from */
/* x->x_inp -> MY_MP3_MALLOC_IN_SIZE, then from 0 on */
for(wp = 0; wp < i; wp++) /* fill up to end of buffer */
{
if(wp%2)
{
in = *(in2++);
}
else
{
in = *(in1++);
}
if (in > 1.0)
{
in = 1.0;
}
if (in < -1.0)
{
in = -1.0;
}
x->x_buffer[wp + x->x_inp] = (short) (32767.0 * in);
}
for(wp = i; wp < n; wp++) /* write rest at start of buffer */
{
if(wp%2)
{
in = *(in2++);
}
else
{
in = *(in1++);
}
if (in > 1.0)
{
in = 1.0;
}
if (in < -1.0)
{
in = -1.0;
}
x->x_buffer[wp - i] = (short) (32767.0 * in);
}
x->x_inp = n - i; /* new writeposition in buffer */
}
if((x->x_fd >= 0)&&(x->x_lame >= 0))
{
/* count buffered samples when things are running */
x->x_bytesbuffered += n;
/* encode and send to server */
if(x->x_bytesbuffered > x->x_lamechunk)
{
mp3cast_encode(x); /* encode to mp3 */
mp3cast_stream(x); /* stream mp3 to server */
x->x_bytesbuffered -= x->x_lamechunk;
}
}
else
{
x->x_start = -1;
}
return (w+5);
}
static void mp3cast_dsp(t_mp3cast *x, t_signal **sp)
{
dsp_add(mp3cast_perform, 4, sp[0]->s_vec, sp[1]->s_vec, x, sp[0]->s_n);
}
/* initialize the lame library */
static void mp3cast_tilde_lame_init(t_mp3cast *x)
{
int ret;
x->lgfp = lame_init(); /* set default parameters for now */
#ifdef _WIN32
/* load lame_enc.dll library */
HINSTANCE dll;
dll=LoadLibrary("libmp3lame-0.dll");
if(!dll)
{
pd_error(x, "[%s]: error loading lame_enc.dll", CLASSNAME);
closesocket(x->x_fd);
x->x_fd = -1;
outlet_float(x->x_obj.ob_outlet, 0);
logpost(x, 2, "[%s]: connection closed", CLASSNAME);
return;
}
#endif /* _WIN32 */
{
const char *lameVersion = get_lame_version();
logpost(x, 4, "[%s]: using lame version : %s", CLASSNAME, lameVersion );
}
/* setting lame parameters */
lame_set_num_channels( x->lgfp, 2);
lame_set_in_samplerate( x->lgfp, sys_getsr() );
lame_set_out_samplerate( x->lgfp, x->x_samplerate );
lame_set_brate( x->lgfp, x->x_bitrate );
lame_set_mode( x->lgfp, x->x_mp3mode );
lame_set_quality( x->lgfp, x->x_mp3quality );
lame_set_emphasis( x->lgfp, 1 );
lame_set_original( x->lgfp, 1 );
lame_set_copyright( x->lgfp, 1 ); /* viva free music societies !!! */
lame_set_disable_reservoir( x->lgfp, 0 );
//lame_set_padding_type( x->lgfp, PAD_NO ); /* deprecated function */
ret = lame_init_params( x->lgfp );
if ( ret<0 )
{
pd_error(x, "[%s]: error : lame params initialization returned : %d", CLASSNAME, ret );
}
else
{
x->x_lame=1;
/* magic formula copied from windows dll for MPEG-I */
x->x_lamechunk = 2*1152;
logpost(x, 3, "[%s]: lame initialization done. (%d)", CLASSNAME, x->x_lame );
}
lame_init_bitstream( x->lgfp );
}
char *mp3cast_base64_encode(char *data)
{
int len = strlen(data);
char *out = t_getbytes(len*4/3 + 4);
char *result = out;
int chunk;
while(len > 0)
{
chunk = (len >3)?3:len;
*out++ = base64table[(*data & 0xFC)>>2];
*out++ = base64table[((*data & 0x03)<<4) | ((*(data+1) & 0xF0) >> 4)];
switch(chunk)
{
case 3:
*out++ = base64table[((*(data+1) & 0x0F)<<2) | ((*(data+2) & 0xC0)>>6)];
*out++ = base64table[(*(data+2)) & 0x3F];
break;
case 2:
*out++ = base64table[((*(data+1) & 0x0F)<<2)];
*out++ = '=';
break;
case 1:
*out++ = '=';
*out++ = '=';
break;
}
data += chunk;
len -= chunk;
}
*out = 0;
return result;
}
/* connect to server */
static void mp3cast_connect(t_mp3cast *x, t_symbol *hostname, t_floatarg fportno)
{
struct sockaddr_in server;
struct hostent *hp;
int portno = fportno; /* get port from message box */
/* information about this broadcast to be send to the server */
const char *name = x->x_name; /* name of broadcast */
const char *url = x->x_url; /* url of broadcast */
const char *genre = x->x_genre; /* genre of broadcast */
const char *description = x->x_description; /* description of broadcast */
const char *aim = "N/A"; /* aim of broadcast */
const char *irc = "#mp3cast"; /* ??? what's this ??? */
const char *icq = ""; /* icq id of broadcaster */
const char *mountpoint = x->x_mountpoint; /* mountpoint for IceCast server */
int isPublic = x->x_isPublic; /* don't publish broadcast on www.shoutcast.com */
/* variables used for communication with server */
const char * buf = 0;
char resp[STRBUF_SIZE];
unsigned int len;
fd_set writefds, errfds;
struct timeval tv;
int sockfd;
int ret;
if(x->x_icecast == 0)portno++; /* use SHOUTcast, portno is one higher */
if (x->x_fd >= 0)
{
pd_error(x, "[%s]: already connected", CLASSNAME);
return;
}
sockfd = socket(AF_INET, SOCK_STREAM, IPPROTO_TCP);
if (sockfd < 0)
{
pd_error(x, "[%s]: internal error while attempting to open socket", CLASSNAME);
return;
}
/* connect socket using hostname provided in command line */
server.sin_family = AF_INET;
hp = gethostbyname(hostname->s_name);
if (hp == 0)
{
pd_error(x, "[%s]: bad host?", CLASSNAME);
close(sockfd);
return;
}
memcpy((char *)&server.sin_addr, (char *)hp->h_addr, hp->h_length);
/* assign client port number */
server.sin_port = htons((unsigned short)portno);
// Set sockfd non-blocking, so we can use select()'s timeout
mp3cast_sock_set_nonblocking(sockfd, 1);
/* try to connect. */
logpost(x, 3, "[%s]: connecting to port %d", CLASSNAME, portno);
ret = connect(sockfd, (struct sockaddr *)&server, sizeof (server));
if (errno != EINPROGRESS && errno != 0)
{
pd_error(x, "[%s]: connection failed!", CLASSNAME);
#ifdef _WIN32
closesocket(sockfd);
#else
close(sockfd);
#endif /* _WIN32 */
return;
}
/* sheck if we can read/write from/to the socket */
FD_ZERO(&writefds);
FD_SET(sockfd, &writefds); // socket is connected when writable
FD_ZERO(&errfds);
FD_SET(sockfd, &errfds);
tv.tv_sec = (int)(x->x_timeout / 1000); /* seconds */
tv.tv_usec = ((x->x_timeout/1000) - tv.tv_sec) * 1000000; /* microseconds */
ret = select(sockfd + 1, NULL, &writefds, &errfds, &tv);
if(ret <= 0)
{
if(ret == 0)
pd_error(x, "[%s]: write timeout on socket", CLASSNAME);
if(ret < 0)
pd_error(x, "[%s]: can not write to socket", CLASSNAME);
#ifdef _WIN32
closesocket(sockfd);
#else
close(sockfd);
#endif /* _WIN32 */
return;
}
mp3cast_sock_set_nonblocking(sockfd, 0);
if(x->x_icecast == 0) /* SHOUTCAST */
{
/* now try to log in at SHOUTcast server */
logpost(x, 3, "[%s]: logging in to SHOUTcast server...", CLASSNAME);
/* first line is the passwd */
buf = x->x_passwd;
send(sockfd, buf, strlen(buf), 0);
buf = "\n";
send(sockfd, buf, strlen(buf), 0);
/* header for SHOUTcast server */
buf = "icy-name:"; /* name of broadcast */
send(sockfd, buf, strlen(buf), 0);
buf = name;
send(sockfd, buf, strlen(buf), 0);
buf = "\nicy-url:"; /* URL of broadcast */
send(sockfd, buf, strlen(buf), 0);
buf = url;
send(sockfd, buf, strlen(buf), 0);
buf = "\nicy-genre:"; /* genre of broadcast */
send(sockfd, buf, strlen(buf), 0);
buf = genre;
send(sockfd, buf, strlen(buf), 0);
buf = "\nicy-description:"; /* description of broadcast */
send(sockfd, buf, strlen(buf), 0);
buf = description;
send(sockfd, buf, strlen(buf), 0);
buf = "\nicy-irc:";
send(sockfd, buf, strlen(buf), 0);
buf = irc;
send(sockfd, buf, strlen(buf), 0);
buf = "\nicy-aim:";
send(sockfd, buf, strlen(buf), 0);
buf = aim;
send(sockfd, buf, strlen(buf), 0);
buf = "\nicy-icq:";
send(sockfd, buf, strlen(buf), 0);
buf = icq;
send(sockfd, buf, strlen(buf), 0);
buf = "\nicy-br:";
send(sockfd, buf, strlen(buf), 0);
if(sprintf(resp, "%d", x->x_bitrate) == -1) /* convert int to a string */
{
pd_error(x, "[%s]: wrong bitrate", CLASSNAME);
}
send(sockfd, resp, strlen(resp), 0);
buf = "\nicy-pub:";
send(sockfd, buf, strlen(buf), 0);
if(isPublic==0) /* set the public flag for broadcast */
{
buf = "no";
}
else
{
buf ="yes";
}
send(sockfd, buf, strlen(buf), 0);
buf = "\n\n";
send(sockfd, buf, strlen(buf), 0);
}
else if ( x->x_icecast == 1 ) /* IceCast */
{
/* now try to log in at IceCast server */
logpost(x, 3, "[%s]: logging in to IceCast server...", CLASSNAME);
/* send the request, a string like:
* "SOURCE <password> /<mountpoint>\n" */
buf = "SOURCE ";
send(sockfd, buf, strlen(buf), 0);
buf = x->x_passwd;
send(sockfd, buf, strlen(buf), 0);
buf = " /";
send(sockfd, buf, strlen(buf), 0);
buf = mountpoint;
send(sockfd, buf, strlen(buf), 0);
/* send the x-audiocast headers */
buf = "\nx-audiocast-bitrate: ";
send(sockfd, buf, strlen(buf), 0);
if(sprintf(resp, "%d", x->x_bitrate) == -1) /* convert int to a string */
{
pd_error(x, "[%s]: wrong bitrate", CLASSNAME);
}
send(sockfd, resp, strlen(resp), 0);
buf = "\nx-audiocast-public: ";
send(sockfd, buf, strlen(buf), 0);
if(isPublic==0) /* set the public flag for broadcast */
{
buf = "no";
}
else
{
buf ="yes";
}
send(sockfd, buf, strlen(buf), 0);
buf = "\nx-audiocast-name: ";
send(sockfd, buf, strlen(buf), 0);
buf = name;
send(sockfd, buf, strlen(buf), 0);
buf = "\nx-audiocast-url: ";
send(sockfd, buf, strlen(buf), 0);
buf = url;
send(sockfd, buf, strlen(buf), 0);
buf = "\nx-audiocast-genre: ";
send(sockfd, buf, strlen(buf), 0);
buf = genre;
send(sockfd, buf, strlen(buf), 0);
buf = "\nx-audiocast-description: ";
send(sockfd, buf, strlen(buf), 0);
buf = description;
send(sockfd, buf, strlen(buf), 0);
buf = "\n\n";
send(sockfd, buf, strlen(buf), 0);
/* end login for IceCast */
}
else if ( x->x_icecast == 2 ) /* Icecast 2 */
{
char *base64; /* buffer to hold 64bit encoded strings */
/* send the request, a string like: "SOURCE /<mountpoint> HTTP/1.0\r\n" */
buf = "SOURCE /";
send(sockfd, buf, strlen(buf), 0);
buf = x->x_mountpoint;
send(sockfd, buf, strlen(buf), 0);
buf = " HTTP/1.0\r\n";
send(sockfd, buf, strlen(buf), 0);
/* send basic authorization as base64 encoded string */
sprintf(resp, "source:%s", x->x_passwd);
len = strlen(resp);
base64 = mp3cast_base64_encode(resp);
sprintf(resp, "Authorization: Basic %s\r\n", base64);
send(sockfd, resp, strlen(resp), 0);
t_freebytes(base64, len*4/3 + 4);
/* send application name */
buf = "User-Agent: mp3cast~";
send(sockfd, buf, strlen(buf), 0);
/* send content type: mpeg */
buf = "\r\nContent-Type: audio/mpeg";
send(sockfd, buf, strlen(buf), 0);
/* send the ice headers */
/* name */
buf = "\r\nice-name: ";
send(sockfd, buf, strlen(buf), 0);
buf = x->x_name;
send(sockfd, buf, strlen(buf), 0);
/* url */
buf = "\r\nice-url: ";
send(sockfd, buf, strlen(buf), 0);
buf = x->x_url;
send(sockfd, buf, strlen(buf), 0);
/* genre */
buf = "\r\nice-genre: ";
send(sockfd, buf, strlen(buf), 0);
buf = genre;
send(sockfd, buf, strlen(buf), 0);
/* public */
buf = "\r\nice-public: ";
send(sockfd, buf, strlen(buf), 0);
if(isPublic==0)
{
buf = "0";
}
else
{
buf = "1";
}
send(sockfd, buf, strlen(buf), 0);
/* bitrate */
if(sprintf(resp, "\r\nice-audio-info: bitrate=%d", x->x_bitrate) == -1)
{
pd_error(x, "[%s]: could not create audio-info", CLASSNAME);
}
send(sockfd, resp, strlen(resp), 0);
/* description */
buf = "\r\nice-description: ";
send(sockfd, buf, strlen(buf), 0);
buf = description;
send(sockfd, buf, strlen(buf), 0);
/* end of header: write an empty line */
buf = "\r\n\r\n";
send(sockfd, buf, strlen(buf), 0);
}
/* read the anticipated response: "OK" */
len = recv(sockfd, resp, STRBUF_SIZE, 0);
if ( strstr( resp, "OK" ) == NULL )
{
pd_error(x, "[%s]: login failed!", CLASSNAME);
if ( len>0 ) logpost(x, 3, "[%s]: server answered : %s", CLASSNAME, resp);
#ifdef _WIN32
closesocket(sockfd);
#else
close(sockfd);
#endif /* _WIN32 */
return;
}
/* suck anything that the other side has to say */
// while (len = recv(sockfd, resp, STRBUF_SIZE,0))
// {
// post("mp3cast~: server answered : %s", resp);
// }
x->x_servaddr = server;
x->x_fd = sockfd;
x->x_hostname = (char *)hostname->s_name;
x->x_port = (int)fportno;
outlet_float(x->x_obj.ob_outlet, 1);
logpost(x, 3, "[%s]: logged in to %s", CLASSNAME, hp->h_name);
mp3cast_tilde_lame_init(x);
}
/* close connection to SHOUTcast server */
static void mp3cast_disconnect(t_mp3cast *x)
{
if(x->x_lame >= 0)
{
/* ignore remaining bytes */
if ((x->x_mp3size = lame_encode_flush( x->lgfp, x->x_mp3outbuf, 0)) < 0 )
{
logpost(x, 2, "[%s]: warning: remaining encoded bytes", CLASSNAME);
}
lame_close( x->lgfp );
x->x_lame = -1;
logpost(x, 3, "[%s]: encoder stream closed", CLASSNAME);
}
if(x->x_fd >= 0) /* close socket */
{
#ifdef _WIN32
closesocket(x->x_fd);
#else
close(x->x_fd);
#endif /* _WIN32 */
x->x_fd = -1;
outlet_float(x->x_obj.ob_outlet, 0);
logpost(x, 3, "[%s]: connection closed", CLASSNAME);
}
}
/* set password for SHOUTcast server */
static void mp3cast_password(t_mp3cast *x, t_symbol *password)
{
logpost(x, 3, "[%s]: setting password to %s", CLASSNAME, password->s_name );
x->x_passwd = (char *)password->s_name;
}
/* settings for mp3 encoding */
static void mp3cast_mpeg(t_mp3cast *x, t_floatarg fsamplerate, t_floatarg fbitrate,
t_floatarg fmode, t_floatarg fquality)
{
x->x_samplerate = fsamplerate;
if(fbitrate > MAXDATARATE)
{
fbitrate = MAXDATARATE;
}
x->x_bitrate = fbitrate;
x->x_mp3mode = fmode;
x->x_mp3quality = fquality;
logpost(x, 3, "[%s]: setting mp3 stream to %dHz, %dkbit/s, mode %d, quality %d", CLASSNAME,
x->x_samplerate, x->x_bitrate, x->x_mp3mode, x->x_mp3quality);
if(x->x_fd>=0) logpost(x, 2, "[%s]: reconnect to make changes take effect!", CLASSNAME);
}
/* print settings */
static void mp3cast_print(t_mp3cast *x)
{
const char * buf = 0;
post(" LAME mp3 settings:\n"
" output sample rate: %d Hz\n"
" bitrate: %d kbit/s", x->x_samplerate, x->x_bitrate);
switch(x->x_mp3mode)
{
case 0 :
buf = "stereo";
break;
case 1 :
buf = "joint stereo";
break;
case 2 :
buf = "dual channel";
break;
case 3 :
buf = "mono";
break;
}
post(" mode: %s\n"
" quality: %d", buf, x->x_mp3quality);
post(" mp3 chunk size: %d", x->x_lamechunk);
if(x->x_samplerate!=sys_getsr())
{
post(" resampling from %d to %d Hz!", (int)sys_getsr(), x->x_samplerate);
}
if ( x->x_icecast == 0)
{
post(" server type is SHOUTcast");
}
else if ( x->x_icecast == 1 )
{
post(" server type is IceCast");
}
else if ( x->x_icecast == 2 )
{
post(" server type is IceCast 2");
}
}
static void mp3cast_icecast(t_mp3cast *x)
{
x->x_icecast = 1;
logpost(x, 3, "[%s]: set server type to IceCast", CLASSNAME);
}
static void mp3cast_icecast2(t_mp3cast *x)
{
x->x_icecast = 2;
logpost(x, 3, "[%s]: set server type to IceCast 2", CLASSNAME);
}
static void mp3cast_shoutcast(t_mp3cast *x)
{
x->x_icecast = 0;
logpost(x, 3, "[%s]: set server type to SHOUTcast", CLASSNAME);
}
/* set mountpoint for IceCast server */
static void mp3cast_mountpoint(t_mp3cast *x, t_symbol *mount)
{
x->x_mountpoint = (char *)mount->s_name;
logpost(x, 3, "[%s]: mountpoint set to %s", CLASSNAME, x->x_mountpoint);
}
/* set namle for IceCast server */
static void mp3cast_name(t_mp3cast *x, t_symbol *name)
{
x->x_name = (char *)name->s_name;
logpost(x, 3, "[%s]: name set to %s", CLASSNAME, x->x_name);
}
/* set url for IceCast server */
static void mp3cast_url(t_mp3cast *x, t_symbol *url)
{
x->x_url = (char *)url->s_name;
logpost(x, 3, "[%s]: url set to %s", CLASSNAME, x->x_url);
}
/* set genre for IceCast server */
static void mp3cast_genre(t_mp3cast *x, t_symbol *genre)
{
x->x_genre = (char *)genre->s_name;
logpost(x, 3, "[%s]: genre set to %s", CLASSNAME, x->x_genre);
}
/* set isPublic for IceCast server */
static void mp3cast_isPublic(t_mp3cast *x, t_floatarg isPublic)
{
x->x_isPublic = isPublic;
char* isPublicStr;
if(isPublic==0)
{
isPublicStr = "no";
}
else
{
isPublicStr = "yes";
}
logpost(x, 3, "[%s]: isPublic set to %s", CLASSNAME, isPublicStr);
}
/* set description for IceCast server */
static void mp3cast_description(t_mp3cast *x, t_symbol *description)
{
x->x_description = (char *)description->s_name;
logpost(x, 3, "[%s]: description set to %s", CLASSNAME, x->x_description);
}
/* set icy-title for IceCast server */
static void mp3cast_icytitle(t_mp3cast *x, t_symbol *icytitle_s)
{
/* Check if we're already streaming */
if (x->x_fd == -1) {
pd_error(x, "[%s]: not connected", CLASSNAME);
return;
}
// works only with Icecast 2
if (x->x_icecast != 2) {
pd_error(x, "[%s]: 'icy-title' works only with Icecast2", CLASSNAME);
return;
}